燃料棒

At one time, curtain rods were used for only one purpose - hanging curtains.

在同一时间，窗帘燃料棒只用于一个目的-挂窗帘。

The technology of power adjusting is one of the key technologies of fuel rod ramp test.

燃料棒功率瞬变调节技术是燃料元件堆内瞬态行为试验研究中的关键技术之一。

Today we visited the reactor and saw fuel rod imitators being loaded in the active zone, he added.

今天我们参观反应堆和看见燃料棒模拟器在活动区被装载，他补充说。

During rod drop transient, the interaction between pellet and cladding increases instantly, which may leads to failure of fuel rod.

当反应堆发生落棒事故时，燃料芯块与包壳的相互作用瞬间增强，易造成燃料棒破损，从而影响核电站的正常运行。

The test of nuclear fuel and materials is one of the most important applications of China Advanced Research Reactor. A high-temperature and high-pressure test loop is being planed in the construction of CARR application platforms. The loop simulates the operating environment such as linear power of fuel rod, coolant pressure, flow velocity, temperature and water chemistry, etc.

核燃料和材料试验研究是即将建成的中国先进研究堆的重要应用之一，因此在现在的CARR应用平台建设规划中，将建立一个高温高压试验回路，模拟压水堆燃料元件运行条件(例如燃料棒线功率、冷却剂压力、流速、温度和水化学等)，用于今后的压水堆燃料和材料堆内试验研究。

Also calculated are dynamic heat transfer characteristics in the fuel rod under different pressure and it is found that we can use the temperature raising speed at x=14.5 cm to calculate helium pressure in the fuel rod.

通过用RODTRAN程序计算各种不同压力情况下的燃料棒动态传热特性，发现利用x=14.5cm处的包壳表面升温速率可以推算燃料棒内的氦气压力，氦气压力的测量精度可小于5％，也就是说可以区分1.9MPa和2.0MPa的压力差别，此时的最大温差可达0.5℃，同时也发现压紧弹簧段的温度响应比铀芯块段要快。

Axial distribution of activity ratio A ( 134 Cs)/ A ( 137 Cs) along the fuel rod with different burnup level,irradiation history and cooling time is measured by the γ scanning device. As a comparison, this distribution is calculated by the FCAC code used for the fuel rod failure analysis.

在热室中，用γ扫描装置对秦山核电厂 3× 3 -2考验组件中辐照历史、燃耗及冷却时间不同的两根燃料棒中的铯活度比A(13 4 Cs)/A(13 7Cs)的轴向分布进行了测量，并利用自行开发的压水堆燃料棒破损特性分析程序FCAC进行了理论计算。

This paper described several applicable measurement techniques and characteri-stics in the study of Spacer grid clipping force relaxation behaviour,such asmeasuring clipping force relaxation in the laboratory,measuring fuel rod brea-kaway force and withdrawal force within the cell of post-irradiated 17×17 asse-mbly,measuring friction force and cell size withi...

本文介绍了定位格架夹持力辐照松弛研究中几种适用的测量方法及其特点，如在实验室研究中测定位格架弹簧力的松弛，在辐照后的17×17验证组件中测燃料棒在栅元中的移动力和滑动力、在抽出燃料棒的空栅元中测栅元摩擦力及栅元尺寸等方法。

The course of the localization and running condition of CANDU-6 fuel bundle production line for HWR Nuclear Power Station—Baotou Nuclear Fuel Plant, is presented.

介绍了我国第一条重水堆核电站用CANDU6燃料棒束生产线———包头核燃料元件厂的建设历程和运行状况，描述了CANDU 6型燃料棒束的技术特征、制造工艺流程及主要工艺技术条件要求。

scatheless measurement ; numerical simulation ; helium pressure

利用氦气在不同压力下具有不同的状态参数和热力参数，可以通过传热方法测量包壳内的氦气压力。1试验装置和研究方法如图1，把燃料棒浸入到一个高温的池子内，热量会在燃料棒内传递开来，通过测量管壁外面不同位置出的壁面温度，就可以推测到包壳内的氦气压力

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。